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vmm: Add support for hotplugging user devices

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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2021-07-30 14:48:58 +00:00
parent f99462add4
commit 53b2e19934
6 changed files with 114 additions and 8 deletions
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19
vmm/src/api/mod.rs
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@@ -34,6 +34,7 @@ pub use self::http::start_http_path_thread;
pub mod http;
pub mod http_endpoint;
use crate::config::UserDeviceConfig;
use crate::config::{
DeviceConfig, DiskConfig, FsConfig, NetConfig, PmemConfig, RestoreConfig, VmConfig, VsockConfig,
};
@@ -109,6 +110,9 @@ pub enum ApiError {
/// The device could not be added to the VM.
VmAddDevice(VmError),
/// The user device could not be added to the VM.
VmAddUserDevice(VmError),
/// The device could not be removed from the VM.
VmRemoveDevice(VmError),
@@ -269,6 +273,9 @@ pub enum ApiRequest {
/// Add a device to the VM.
VmAddDevice(Arc<DeviceConfig>, Sender<ApiResponse>),
/// Add a user device to the VM.
VmAddUserDevice(Arc<UserDeviceConfig>, Sender<ApiResponse>),
/// Remove a device from the VM.
VmRemoveDevice(Arc<VmRemoveDeviceData>, Sender<ApiResponse>),
@@ -364,6 +371,9 @@ pub enum VmAction {
/// Add vsock
AddVsock(Arc<VsockConfig>),
/// Add user device
AddUserDevice(Arc<UserDeviceConfig>),
/// Remove VFIO device
RemoveDevice(Arc<VmRemoveDeviceData>),
@@ -411,6 +421,7 @@ fn vm_action(
AddPmem(v) => ApiRequest::VmAddPmem(v, response_sender),
AddNet(v) => ApiRequest::VmAddNet(v, response_sender),
AddVsock(v) => ApiRequest::VmAddVsock(v, response_sender),
AddUserDevice(v) => ApiRequest::VmAddUserDevice(v, response_sender),
RemoveDevice(v) => ApiRequest::VmRemoveDevice(v, response_sender),
Resize(v) => ApiRequest::VmResize(v, response_sender),
ResizeZone(v) => ApiRequest::VmResizeZone(v, response_sender),
@@ -572,6 +583,14 @@ pub fn vm_add_device(
vm_action(api_evt, api_sender, VmAction::AddDevice(data))
}
pub fn vm_add_user_device(
api_evt: EventFd,
api_sender: Sender<ApiRequest>,
data: Arc<UserDeviceConfig>,
) -> ApiResult<Option<Body>> {
vm_action(api_evt, api_sender, VmAction::AddUserDevice(data))
}
pub fn vm_remove_device(
api_evt: EventFd,
api_sender: Sender<ApiRequest>,